US7633719B2 - Fluidic stripper assembly with load/unload ramp - Google Patents
Fluidic stripper assembly with load/unload ramp Download PDFInfo
- Publication number
- US7633719B2 US7633719B2 US11/963,569 US96356907A US7633719B2 US 7633719 B2 US7633719 B2 US 7633719B2 US 96356907 A US96356907 A US 96356907A US 7633719 B2 US7633719 B2 US 7633719B2
- Authority
- US
- United States
- Prior art keywords
- rotatable
- access element
- rotatable surface
- cantilevered arm
- fluidic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Definitions
- the claimed invention relates generally to the field of fluidic control devices and more particularly, but not by way of limitation, to an apparatus for controlling an access element adjacent a rotatable surface.
- Digital data storage devices are used to store and retrieve large amounts of user data in a fast and efficient manner.
- a typical data storage device uses an actuator assembly to support an array of vertically aligned data transducing heads adjacent recording surfaces in a disc stack.
- the disc stack is rotated at a relatively high rotational velocity by a spindle motor.
- An actuator motor (such as a voice coil motor, VCM) pivots the actuator assembly to align the transducers with data tracks defined on the recording surfaces to write data to the tracks and retrieve previously written data from the tracks.
- the heads are typically hydrodynamically supported adjacent the recording surfaces by fluidic currents established by rotation of the disc stack.
- the present invention is generally directed to an apparatus which provides improved positional control for an access element moveable adjacent a rotatable surface.
- the apparatus comprises a downstream fluidic stripper assembly comprising an elongated cantilevered arm which projects proximate a rotatable surface.
- the cantilevered arm comprises an edge surface which extends proximate to and in facing relationship with a movement path of an access element across the rotatable surface to impede fluidic currents established by rotation of the rotatable surface.
- the cantilevered arm supports a ramp structure which receivingly supports the access element at a position away from the rotatable surface and proximate an innermost diameter such as during a deactivated mode when the rotatable surface is stationary.
- the rotatable surface is characterized as a data recording disc and the access element is characterized as a data transducing head of a data storage device, although such is not limiting.
- the stripper assembly preferably comprises a body portion secured at a position beyond an outer extent of the rotatable surface, with the cantilevered arm projecting from the body portion coaxially adjacent and substantially parallel to the rotatable surface.
- the apparatus comprises a rotatable surface and an access element moveable along a movement path adjacent the rotatable surface.
- a stationary, downstream fluidic stripper assembly comprises a cantilevered arm comprising an edge surface which extends proximate to and in facing relationship with the movement path to impede fluidic currents established by rotation of the rotatable surface.
- the cantilevered arm supports a ramp structure which receivingly supports the access element at a position away from the rotatable surface and proximate an innermost diameter.
- the rotatable surface is preferably characterized as a data recording disc and the access element is preferably characterized as a data transducing head of a data storage device.
- FIG. 1 is a top plan view of a data storage device which utilizes a downstream fluidic stripper assembly to effect head positioning control during operational and deactivated modes in accordance with preferred embodiments of the present invention.
- FIG. 2 shows the stripper assembly of FIG. 1 in greater detail.
- FIG. 3 is an isometric view of the stripper assembly of FIG. 2 .
- FIG. 3A generally shows a top plan, partial cross-sectional view of the stripper assembly along line 3 A- 3 A in FIG. 3 .
- FIG. 3B generally shows a side elevational, cross-sectional view of the stripper assembly along line 3 B- 3 B in FIG. 3A .
- FIG. 4 schematically depicts a data transducing head in conjunction with the stripper assembly while the head is in an unloaded position on a ramp structure of the stripper assembly during a deactivated mode of the device.
- FIG. 5 schematically depicts the head in a loaded position out adjacent a data recording surface during an operational mode of the device.
- FIG. 6 illustrates the use of one or more latching features (“bumps” or “detents”) on the ramp structure.
- FIGS. 7-9 illustrate various alternative configurations for the leading edge of the stripper assembly.
- FIG. 10 provides an alternative embodiment for the stripper assembly with the ramp structures adjacent the outermost diameter (OD) of the discs.
- FIG. 1 has been provided to illustrate a particularly suitable environment in which the claimed invention can be advantageously practiced.
- FIG. 1 provides a top plan view of a data storage device 100 of the type configured to magnetically store and transfer digital data with a host device.
- the device 100 includes a base deck 102 which mates with a top cover 104 (shown in partial cut-away) to form a sealed housing.
- a spindle motor 106 rotates a number of axially aligned, magnetic recording discs 108 at a constant high speed during device operation.
- An actuator assembly 110 positions a corresponding array of data transducing heads 112 adjacent the disc surfaces.
- the heads 112 are hydrodynamically supported by fluidic (air) currents established by the high speed rotation of the discs 108 .
- the currents denoted generally by arrow 114 , circulate within the housing along the direction of rotation of the discs 108 (in this case, generally counter-clockwise as depicted in FIG. 1 ).
- a flex circuit assembly 118 provides electrical communication paths between the actuator assembly 110 and control circuitry on a disc drive printed circuit board 119 mounted to the underside of the base deck 102 .
- a downstream fluidic stripper assembly 120 is disposed adjacent to and downstream of a movement path of the heads 112 . As explained below, the stripper assembly 120 is utilized to effect head positioning control during operational and deactivated modes of the device 100 .
- the stripper assembly 120 is shown in greater detail in FIGS. 2 and 3 .
- a body portion 122 is affixed to the base deck 102 using a threaded fastener 124 which extends through an aperture 126 , and an alignment pin 128 which extends through an aperture 130 .
- the stripper assembly 120 is preferably installed by pressing the alignment pin 128 into the base deck 102 , after which the stripper assembly 120 is lowered down onto the alignment pin 128 , rotated into the final position and secured with the fastener 124 .
- a number of elongated cantilevered arms 132 project from the body portion 122 , as best shown in FIG. 3 .
- a total of five arms 132 are shown to accommodate four discs 108 in the disc stack, with the intermediary three arms being disposed between adjacent discs, the bottommost arm residing below the bottommost disc, and the topmost arm residing above the topmost disc (see FIG. 1 ).
- Other numbers of arms and discs can be utilized as desired depending on the requirements of a given application.
- Each arm 132 projects from the body portion 122 so as to be coaxially adjacent and substantially parallel to one (or more) of the rotatable disc surfaces.
- Each arm 132 includes an edge surface 134 which extends proximate to and in facing relationship with the movement path of the associated head(s) 112 .
- the edge surfaces serve to impede the fluidic currents 114 in the vicinity of the movement path, thereby inducing laminar flow and reducing vibrations in the actuator assembly 110 that can adversely affect head positioning.
- FIG. 3A is a top plan view generally taken along line 3 A- 3 A in FIG. 3 to show a selected intermediate arm 132 .
- FIG. 3B is a side elevational view of the arm 132 generally taken along line 3 B- 3 B in FIG. 3A (the body portion 122 has been omitted in FIG. 3B for clarity).
- the arm 132 has a stepped cross-sectional shape defined by leading edge surface 134 and respective stepped surfaces 134 A, 134 B, 134 C and 134 D.
- the surfaces 134 , 134 B and 134 D extend in a first direction (e.g., vertical) and the surfaces 134 A and 134 C extend in a second direction (e.g., horizontal) substantially orthogonal to the first direction.
- the stepped surfaces of the arm 132 form a localized area of increased thickness 135 A that transitions to a localized area of decreased thickness 135 B via transition surfaces 134 A.
- Each of the cantilevered arms 132 supports a ramp structure 136 for use when the device 100 enters a deactivated mode.
- the ramp structures 136 are configured to guide the associated head 112 toward or away from the disc 108 during head loading/unloading.
- each head 112 preferably includes a forward projecting load tab 138 ( FIG. 2 ) which is contactingly guided along an inclined ramp surface 140 and onto a shelf surface 142 to park (unload) the head 112 .
- the spindle motor 106 is accelerated to a velocity sufficient to hydrodynamically support the heads 112 , and the load tabs 138 are guided across the shelf surfaces 142 and down the ramp surface 140 to load the head 112 out over the disc surface 108 , as depicted in FIG. 5 .
- the stripper assembly 120 is preferably fabricated as a unitary article using an injection molding or other suitable process.
- the material composition of the ramp structure 136 is preferably selected to provide relatively low wear, particulation and friction characteristics.
- FIG. 6 illustrates a latching feature 144 (“bump” or “detent”), one or more of which can be advantageously formed on the shelf surface 142 to retain the load tab 138 once the head 112 is unloaded.
- the edge surface 134 of each cantilevered arm 132 can be additionally tailored to provide desired fluidic flow characteristics for a given application.
- FIG. 7 illustrates the configuration of the arm 132 as a dam so that the edge surface 134 has a greater thickness (and hence, profile) than remaining portions of the arm 132 . In FIG. 7 , the arm thickness ultimately tapers to a downstream point 146 .
- FIGS. 8 and 9 illustrate alternative tapered edge surfaces 134 which present a reduced thickness, and hence profile, as compared to remaining portions of the arm 132 .
- Other profiles are readily envisioned, including a “diamond” or “blade” profile (such as, for example, combining FIGS. 7 and 9 ).
- the ramp structures 136 have been shown to be preferably located adjacent the innermost diameter (ID) of the discs 108 .
- Table 1 a configuration such as exemplified in FIG. 1 has been found to provide about an additional 3.8% in the available data area of each disc surface as compared to such conventional OD ramp designs, improving the overall amount of data that can be accommodated by the device 100 .
- ramp structures 136 can be utilized as well, including near the outermost diameter (OD) of the discs 108 , as depicted in FIG. 10 .
- the downstream fluidic stripper assembly can be utilized with any number of different types of rotatable surfaces with access elements including drums, tapes and disc shaped members.
- fluid controlled by the disclosed fluidic stripper assembly such is not limiting; other fluids, such as inert gasses (e.g., helium) can be alternatively controlled as well.
- inert gasses e.g., helium
- the present invention is generally directed to an apparatus which provides improved positional control for an access element moveable adjacent a rotatable surface.
- the apparatus comprises a downstream fluidic stripper assembly (such as 120 ) comprising an elongated cantilevered arm (such as 132 ) which projects proximate a rotatable surface, the cantilevered arm comprising an edge surface (such as 134 ) which extends proximate to and in facing relationship with a movement path of an access element (such as 112 ) across the rotatable surface to impede fluidic currents established by rotation of the rotatable surface.
- a downstream fluidic stripper assembly such as 120
- an elongated cantilevered arm such as 132
- the cantilevered arm comprising an edge surface (such as 134 ) which extends proximate to and in facing relationship with a movement path of an access element (such as 112 ) across the rotatable surface to impede fluidic currents established by rotation of the rotatable surface.
- the cantilevered arm supports a ramp structure (such as 136 ) which receivingly supports the access element at a position away from the rotatable surface.
- the rotatable surface is characterized as a data recording disc (such as 108 ) and the access element is characterized as a data transducing head (such as 112 ) of a data storage device (such as 100 ), although such is not limiting.
- the stripper assembly preferably comprises a body portion (such as 122 ) secured at a position beyond an outer extent of the rotatable surface, with the cantilevered arm projecting from the body portion coaxially adjacent and substantially parallel to the rotatable surface.
- the apparatus comprises a rotatable surface (such as 108 ) and an access element (such as 112 ) moveable along a movement path adjacent the rotatable surface.
- a stationary, downstream fluidic stripper assembly (such as 120 ) comprises an elongated cantilevered arm (such as 132 ) comprising an edge surface (such as 134 ) which extends proximate to and in facing relationship with the movement path to impede fluidic currents established by rotation of the rotatable surface.
- the cantilevered arm supports a ramp structure (such as 136 ) which receivingly supports the access element at a position away from the rotatable surface.
- the rotatable surface is preferably characterized as a data recording disc and the access element is preferably characterized as a data transducing head of a data storage device (such as 100 ).
- downstream will be understood consistent with the foregoing description to describe the relative orientation of the access element 112 , the facing edge surface 134 and the direction of disc rotation as shown in FIG. 1 so that the fluidic currents (depicted at 114 ) pass the access element immediately prior to passing the edge surface.
- first means will be understood to correspond to the disclosed downstream fluidic stripper assembly 120 , including the various embodiments depicted in FIGS. 1-10 with an elongated cantilevered arm. Upstream structures, and non-elongated structures, are explicitly excluded from the definition of an equivalent.
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Moving Of Heads (AREA)
Abstract
Description
TABLE 1 | |||
Conventional OD Ramp | Plate with ID Ramp | ||
Spin to Pivot (inches, in.) | 1.560 | 1.580 |
Pivot to Gap (in.) | 1.260 | 1.260 |
Slider Skew | 0.000 | 0.000 |
Skew at OD (degrees) | 10.0 | 10.0 |
Skew at ID (degrees) | −10.0 | −10.0 |
OD Data Radius (in.) | 1.166 | 1.200 |
ID Data Radius (in.) | 0.726 | 0.759 |
Data Area (in.2) | 2.615 | 2.714 |
Data Area Increase | 3.8% | |
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/963,569 US7633719B2 (en) | 2004-06-16 | 2007-12-21 | Fluidic stripper assembly with load/unload ramp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/869,446 US20050280945A1 (en) | 2004-06-16 | 2004-06-16 | Fluidic stripper assembly with load/unload ramp |
US11/963,569 US7633719B2 (en) | 2004-06-16 | 2007-12-21 | Fluidic stripper assembly with load/unload ramp |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/869,446 Continuation US20050280945A1 (en) | 2004-06-16 | 2004-06-16 | Fluidic stripper assembly with load/unload ramp |
Publications (2)
Publication Number | Publication Date |
---|---|
US20080094757A1 US20080094757A1 (en) | 2008-04-24 |
US7633719B2 true US7633719B2 (en) | 2009-12-15 |
Family
ID=35480301
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/869,446 Abandoned US20050280945A1 (en) | 2004-06-16 | 2004-06-16 | Fluidic stripper assembly with load/unload ramp |
US11/963,569 Expired - Fee Related US7633719B2 (en) | 2004-06-16 | 2007-12-21 | Fluidic stripper assembly with load/unload ramp |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/869,446 Abandoned US20050280945A1 (en) | 2004-06-16 | 2004-06-16 | Fluidic stripper assembly with load/unload ramp |
Country Status (1)
Country | Link |
---|---|
US (2) | US20050280945A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9536552B1 (en) | 2015-07-31 | 2017-01-03 | Seagate Technology Llc | Retaining slide-in ramp for hard disk drive |
US11955149B1 (en) * | 2022-09-16 | 2024-04-09 | Kabushiki Kaisha Toshiba | Disk device with positioned ramp |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7733608B2 (en) * | 2004-06-22 | 2010-06-08 | Panasonic Corporation | Head holding member, disk device with the head holding member, and head holding method in the disk, device |
KR100734276B1 (en) * | 2005-10-10 | 2007-07-02 | 삼성전자주식회사 | HSA protecting member and method for installing HSA in hard disk drive using the same |
US7593192B1 (en) * | 2006-03-20 | 2009-09-22 | Rappel Brian L | Ramp arrangements for a disk drive and method |
US8493690B1 (en) * | 2011-12-29 | 2013-07-23 | HGST Netherlands B.V. | Load-unload ramp structure with cantilevered fin portion configured to reduce drop shock in a hard-disk drive |
US9087525B2 (en) * | 2013-10-30 | 2015-07-21 | Seagate Technology Llc | Layered synthetic anti-ferromagnetic upper shield |
US9171560B1 (en) * | 2014-09-26 | 2015-10-27 | Western Digital Technologies, Inc. | Sloping transition on a ramp of a hard disk drive |
US9183862B1 (en) * | 2014-11-19 | 2015-11-10 | HGST Netherlands B.V. | Load/unload ramps for multiple disk-stack, shared actuator hard disk drive |
US11423927B2 (en) | 2018-04-27 | 2022-08-23 | Seagate Technology Llc | Assembly that enables reduction in disk to disk spacing |
US10811045B2 (en) | 2018-04-27 | 2020-10-20 | Seagate Technology Llc | Assembly that enables reduction in disk to disk spacing |
US11043235B2 (en) | 2018-04-27 | 2021-06-22 | Seagate Technology Llc | Assembly that enables reduction in disk to disk spacing |
US10706879B2 (en) | 2018-07-19 | 2020-07-07 | Western Digital Technologies, Inc. | Vertically translating load/unload ramp mechanism for cold storage data storage device |
WO2021011011A1 (en) * | 2019-07-18 | 2021-01-21 | Western Digital Technologies, Inc. | Vertically translating load/unload ramp mechanism for cold storage data storage device |
US11094347B1 (en) | 2020-04-30 | 2021-08-17 | Seagate Technology Llc | Split ramp for data storage devices |
US11308984B2 (en) | 2020-06-24 | 2022-04-19 | Seagate Technology Llc | Retractable ramp for data storage devices |
US11756579B2 (en) | 2020-06-24 | 2023-09-12 | Seagate Technology Llc | Moveable ramp for data storage device |
US10916271B1 (en) | 2020-06-25 | 2021-02-09 | Western Digital Technologies, Inc. | Eliminating lead screw hysteresis for vertically translating load/unload ramp mechanism for data storage device |
US11651784B2 (en) | 2020-09-02 | 2023-05-16 | Seagate Technology Llc | Actuators for an elevator drive |
US11120834B1 (en) | 2020-09-02 | 2021-09-14 | Seagate Technology Llc | Actuators for an elevator drive |
US11348610B1 (en) | 2021-02-01 | 2022-05-31 | Seagate Technology Llc | Movable ramp with arm engaging bracket for an elevator drive on a magnetic disc recording device |
US11348611B1 (en) | 2021-04-19 | 2022-05-31 | Seagate Technology Llc | Zero skew elevator system |
US11948612B2 (en) | 2021-04-19 | 2024-04-02 | Seagate Technology Llc | Zero skew elevator system |
US11443763B1 (en) | 2021-06-18 | 2022-09-13 | Seagate Technology Llc | Disk drive with multiple actuators on a pivot axis |
US11361787B1 (en) | 2021-07-30 | 2022-06-14 | Seagate Technology Llc | Zero skew disk drive with dual actuators |
US11488624B1 (en) | 2021-09-20 | 2022-11-01 | Seagate Technology Llc | Ball bearing cartridge for linear actuator |
US11468909B1 (en) | 2021-11-02 | 2022-10-11 | Seagate Technology Llc | Zero skew with ultrasonic piezoelectric swing suspension |
US11430472B1 (en) | 2021-11-17 | 2022-08-30 | Seagate Technology Llc | Triple magnet linear actuator motor |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134530A (en) | 1990-08-10 | 1992-07-28 | Seagate Technology, Inc. | Air stripper for improved spindle sync |
US5585980A (en) | 1994-06-09 | 1996-12-17 | International Business Machines Corporation | Low friction device for an actuator arm of a disk drive |
US5898545A (en) | 1997-07-01 | 1999-04-27 | International Business Machines Corporation | Head load/unload and disk airflow control apparatus |
US20020015255A1 (en) | 2000-07-26 | 2002-02-07 | Srinivas Tadepalli | Downstream finned stripper shroud airstream conditioning apparatus for a disc drive |
US20020036862A1 (en) | 2000-09-27 | 2002-03-28 | Seagate Technology Llc | Air dam for a disc drive |
US20020060883A1 (en) * | 1999-09-21 | 2002-05-23 | Shoji Suzuki | Hard disk drive with load/unload capability |
US6449119B1 (en) | 1999-06-29 | 2002-09-10 | International Business Machines Corporation | Hard disk drive and air stabilizing wing for use therewith |
US6549365B1 (en) | 2001-08-06 | 2003-04-15 | Seagate Technology Llc | Airflow control device for a disc drive |
US6600625B1 (en) | 2001-11-01 | 2003-07-29 | Maxtor Corporation | Disk drive with fluid deflector for reducing fluid turbulence near transducer assembly |
US20040240112A1 (en) | 2003-05-26 | 2004-12-02 | Samsung Electronics Co., Ltd. | Particle remover for data storage device and ramp having the particle remover |
US6987640B2 (en) | 2000-07-26 | 2006-01-17 | Seagate Technology Llc | Two-part flow conditioning apparatus for a disc drive |
US7006324B1 (en) | 2002-12-23 | 2006-02-28 | Western Digital Technologies, Inc. | Disk drive including an airflow blocker with a planar portion extending from a blocker arm portion |
US7119986B2 (en) | 2004-04-01 | 2006-10-10 | Seagate Technology Llc | Separator plate with head load/unload |
US7133249B2 (en) | 2004-01-30 | 2006-11-07 | Fujitsu Limited | Recording disk drive having rectifier plate and ramp member therefor |
US7136246B2 (en) | 2003-09-11 | 2006-11-14 | Hitachi Global Storage Technologies Netherlands, B.V. | Method and apparatus for limiting shock damage to hard disk drive during operation |
-
2004
- 2004-06-16 US US10/869,446 patent/US20050280945A1/en not_active Abandoned
-
2007
- 2007-12-21 US US11/963,569 patent/US7633719B2/en not_active Expired - Fee Related
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134530A (en) | 1990-08-10 | 1992-07-28 | Seagate Technology, Inc. | Air stripper for improved spindle sync |
US5585980A (en) | 1994-06-09 | 1996-12-17 | International Business Machines Corporation | Low friction device for an actuator arm of a disk drive |
US5898545A (en) | 1997-07-01 | 1999-04-27 | International Business Machines Corporation | Head load/unload and disk airflow control apparatus |
US6449119B1 (en) | 1999-06-29 | 2002-09-10 | International Business Machines Corporation | Hard disk drive and air stabilizing wing for use therewith |
US20020060883A1 (en) * | 1999-09-21 | 2002-05-23 | Shoji Suzuki | Hard disk drive with load/unload capability |
US20020015255A1 (en) | 2000-07-26 | 2002-02-07 | Srinivas Tadepalli | Downstream finned stripper shroud airstream conditioning apparatus for a disc drive |
US6987640B2 (en) | 2000-07-26 | 2006-01-17 | Seagate Technology Llc | Two-part flow conditioning apparatus for a disc drive |
US20020036862A1 (en) | 2000-09-27 | 2002-03-28 | Seagate Technology Llc | Air dam for a disc drive |
US6549365B1 (en) | 2001-08-06 | 2003-04-15 | Seagate Technology Llc | Airflow control device for a disc drive |
US6600625B1 (en) | 2001-11-01 | 2003-07-29 | Maxtor Corporation | Disk drive with fluid deflector for reducing fluid turbulence near transducer assembly |
US7006324B1 (en) | 2002-12-23 | 2006-02-28 | Western Digital Technologies, Inc. | Disk drive including an airflow blocker with a planar portion extending from a blocker arm portion |
US20040240112A1 (en) | 2003-05-26 | 2004-12-02 | Samsung Electronics Co., Ltd. | Particle remover for data storage device and ramp having the particle remover |
US7136246B2 (en) | 2003-09-11 | 2006-11-14 | Hitachi Global Storage Technologies Netherlands, B.V. | Method and apparatus for limiting shock damage to hard disk drive during operation |
US7133249B2 (en) | 2004-01-30 | 2006-11-07 | Fujitsu Limited | Recording disk drive having rectifier plate and ramp member therefor |
US7119986B2 (en) | 2004-04-01 | 2006-10-10 | Seagate Technology Llc | Separator plate with head load/unload |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9536552B1 (en) | 2015-07-31 | 2017-01-03 | Seagate Technology Llc | Retaining slide-in ramp for hard disk drive |
US11955149B1 (en) * | 2022-09-16 | 2024-04-09 | Kabushiki Kaisha Toshiba | Disk device with positioned ramp |
Also Published As
Publication number | Publication date |
---|---|
US20080094757A1 (en) | 2008-04-24 |
US20050280945A1 (en) | 2005-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7633719B2 (en) | Fluidic stripper assembly with load/unload ramp | |
US7787216B2 (en) | Magnetic head slider and disk drive with reduced damage to recording medium | |
JP4459114B2 (en) | Ramp road device and drive having the same | |
US6535357B1 (en) | Latch for disc drives | |
US4376294A (en) | Head loading and retraction apparatus for magnetic disc storage systems | |
EP1879183B1 (en) | Head stack assembly and hard disk drive having the same | |
US6134077A (en) | Latch for disc drives | |
US6212029B1 (en) | Snubber for a disc drive | |
US20020071216A1 (en) | Disc drive having an air bearing surface with trenched contact protection feature | |
US5561570A (en) | Dynamically loaded suspension for contact recording | |
KR100847497B1 (en) | Head support unit and drive having the same | |
US7746599B2 (en) | Hard disk drive apparatus and method with ramp parking | |
US7119986B2 (en) | Separator plate with head load/unload | |
JP3808664B2 (en) | Magnetic disk unit | |
US8339730B2 (en) | Two-step recess base | |
US7274537B2 (en) | Windage stripper for an actuator and rotating disc | |
JP2003323706A (en) | Magnetic head, and magnetic recording device provided with the same | |
JP4074265B2 (en) | Head suspension assembly and disk drive equipped with the same | |
US6680823B2 (en) | Moveable outer stop | |
US20040150913A1 (en) | Disk apparatus and head suspension apparatus | |
US6543124B2 (en) | Voice coil motor attachment for a hard disc assembly | |
US6549378B2 (en) | Magnetic disk drive with offset load/unload tab | |
JP3838175B2 (en) | Disk unit | |
US20090262459A1 (en) | Slider of a hard disk drive and hard disk drive having the same | |
JP2000222849A (en) | Magnetic head device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SEAGATE TECHNOLOGY LLC, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUVALL, MATTHEW GLENN;WELSCHER, CORY BERT;POTTEBAUM, KENNETH LEE;AND OTHERS;REEL/FRAME:020285/0011;SIGNING DATES FROM 20040614 TO 20040616 |
|
AS | Assignment |
Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT Free format text: SECURITY AGREEMENT;ASSIGNORS:MAXTOR CORPORATION;SEAGATE TECHNOLOGY LLC;SEAGATE TECHNOLOGY INTERNATIONAL;REEL/FRAME:022757/0017 Effective date: 20090507 Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATE Free format text: SECURITY AGREEMENT;ASSIGNORS:MAXTOR CORPORATION;SEAGATE TECHNOLOGY LLC;SEAGATE TECHNOLOGY INTERNATIONAL;REEL/FRAME:022757/0017 Effective date: 20090507 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
AS | Assignment |
Owner name: MAXTOR CORPORATION, CALIFORNIA Free format text: RELEASE;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:025662/0001 Effective date: 20110114 Owner name: SEAGATE TECHNOLOGY INTERNATIONAL, CALIFORNIA Free format text: RELEASE;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:025662/0001 Effective date: 20110114 Owner name: SEAGATE TECHNOLOGY LLC, CALIFORNIA Free format text: RELEASE;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:025662/0001 Effective date: 20110114 Owner name: SEAGATE TECHNOLOGY HDD HOLDINGS, CALIFORNIA Free format text: RELEASE;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT;REEL/FRAME:025662/0001 Effective date: 20110114 |
|
AS | Assignment |
Owner name: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT, Free format text: SECURITY AGREEMENT;ASSIGNOR:SEAGATE TECHNOLOGY LLC;REEL/FRAME:026010/0350 Effective date: 20110118 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: EVAULT INC. (F/K/A I365 INC.), CALIFORNIA Free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE;REEL/FRAME:030833/0001 Effective date: 20130312 Owner name: SEAGATE TECHNOLOGY INTERNATIONAL, CAYMAN ISLANDS Free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE;REEL/FRAME:030833/0001 Effective date: 20130312 Owner name: SEAGATE TECHNOLOGY US HOLDINGS, INC., CALIFORNIA Free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE;REEL/FRAME:030833/0001 Effective date: 20130312 Owner name: SEAGATE TECHNOLOGY LLC, CALIFORNIA Free format text: TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE;REEL/FRAME:030833/0001 Effective date: 20130312 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20211215 |